![US Open 2017: Roger Federer says he thought he would LOSE to Juan Martin del Potro | Tennis | Sport | Express.co.uk US Open 2017: Roger Federer says he thought he would LOSE to Juan Martin del Potro | Tennis | Sport | Express.co.uk](https://cdn.images.express.co.uk/img/dynamic/72/590x/US-Open-2017-Roger-Federer-Juan-Martin-del-Potro-851287.jpg)
US Open 2017: Roger Federer says he thought he would LOSE to Juan Martin del Potro | Tennis | Sport | Express.co.uk
Del Potro beats Federer to reach last four as all-American women's semi-final line-up confirmed at US Open
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US Open: Del Potro denies Federer dream semi-final against Nadal, US women dominate | Sports | German football and major international sports news | DW | 06.09.2017
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US Open 2017: Juan Martin del Potro to face Roger Federer in last eight - Latest Sports News In Nigeria
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US Open 2017: Juan Martin del Potro beats Roger Federer to make semi-finals - Latest Sports News In Nigeria
US Open 2017: Roger Federer v Juan Martin del Potro quarter-final, comeback win v Dominic Thiem, Philipp Kohlschreiber
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US Open 2017: Roger Federer is the greatest player in history - Juan Martin Del Potro | Tennis | Sport | Express.co.uk
![US Open Classics: Juan Martin del Potro vs. Roger Federer, 2009 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event US Open Classics: Juan Martin del Potro vs. Roger Federer, 2009 US Open men's singles final - Official Site of the 2022 US Open Tennis Championships - A USTA Event](https://photo-assets.usopen.org/images/pics/large/f_Del-Potro-2_50th.jpg)